Coil Spring Coupling: Calculation of Torsional Stiffness and Coil Strength

Zyablikov, V. M.; Shirshov, A. A.

doi:10.14489/hb.2021.11.pp.030-037

2021

DOI: 10.14489/hb.2021.11.pp.030-037

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Coil Spring Coupling: Calculation of Torsional Stiffness and Coil Strength

V. M. Zyablikov¹,

A. A. Shirshov²

Abstract: The design of the coupling is considered in detail, its possibilities for connecting misaligned shafts are indicated. The interaction of the spring turns with the teeth of the half-couplings is considered in detail. A scheme of deformation (exaggerated) of the coils during the transmission of torque is proposed, according to which a calculation model is selected to determine the torsional rigidity of the coupling and the strength of the coils. It is shown that during the operation of the coupling, the coils of… Show more

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Cited by 3 publications

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Recommendations for Calculating the Main Parameters of Drive Couplings With Elastic Elements in the Form of a Serpentine Spring

Zyablikov¹,

Shirshov²

2021

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Couplings with metal elastic elements allow you to more accurately calculate the torsional stiffness. At the same time, the greater the number of parameters that affect the stiffness, the more accurately it is possible to achieve compliance of the coupling with the specified parameters. However, the effect on the rigidity of many parameters significantly complicates the calculation. A method is proposed that simplifies the calculation of the main dimensions of the coupling and reduces the time spent on the design of drive couplings with elastic elements in the form of serpentine springs, recommendations are given for choosing the parameters of elastic elements.

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Recommendations for Calculating the Main Parameters of Drive Couplings With Elastic Elements in the Form of a Serpentine Spring

Zyablikov¹,

Shirshov²

2021

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Drive Coupling With a Package of Coil Springs: Calculation of Torsional Stiffness and Strength of Springs

Zyablikov,

Shirshov,

Goncharov

2023

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One of the ways to reduce dynamic loads in machine drives is the use of couplings with low torsional stiffness. When the torque is transmitted by the coupling, the elastic elements deform, increasing the time of energy transfer from one coupling half to another, thereby reducing dynamic loads. The lower the stiffness of the coupling, the less dynamic loads. If a coupling with serpentine springs is used to reduce stiffness, instead of a single spring, a package of such springs should be used, the cross-sectional dimensions of which are the same as the cross-section of a single spring. In this case, the stiffness will decrease in comparison with a single spring by a number of times equal to the number of springs of the package raised to the second power.

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Analysis of stiffness of elastic couplings with packages of cylindrical spring sleeves

Buketkin

Zyablikov

Shirshov

2022

EJSI

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The drives of various machine units that transmit energy from one part of the machine to another use couplings as connecting elements, with permanent couplings, including elastic compensating ones with metal elements, being mostly used. The metal elastic elements in the latter may be in the form of packages of spring sleeves. Their important characteristic is torsional stiffness. The paper analyses the influence of the main dimensions of spring sleeves on the torsional rigidity of the coupling. The study was carried out numerically by the finite element method using the ANSYS R17.0 Academic software package on the coupling model in which the spring sleeve package is replaced by one sleeve with a thickness equal to the thickness of the sleeve package. The analysis provides a rationale for the calculation model, using which the analytical dependence of the torsional stiffness of the coupling on its main dimensions was obtained - the position of the center of the package relative to the half-couplings, the dimensions of the package. Analysis of the analytical dependence made it possible to obtain fairly simple relationships that are convenient for calculating the torsional stiffness of the coupling.

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Coil Spring Coupling: Calculation of Torsional Stiffness and Coil Strength

Cited by 3 publications

References 1 publication

Recommendations for Calculating the Main Parameters of Drive Couplings With Elastic Elements in the Form of a Serpentine Spring

Recommendations for Calculating the Main Parameters of Drive Couplings With Elastic Elements in the Form of a Serpentine Spring

Drive Coupling With a Package of Coil Springs: Calculation of Torsional Stiffness and Strength of Springs

Analysis of stiffness of elastic couplings with packages of cylindrical spring sleeves

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